Comparisons / Antigravity vs Kiro
AI coding tools · HN opinions Nov 2025 – Nov 2026
Antigravity vs Kiro: what developers actually say
Based on 339 opinions on Hacker News from developers who discussed these two, most of them first-hand users.
Kiro has the higher approval rate at 59% versus 45% for Antigravity, but that comes from 38 opinions by 30 authors. Antigravity has 301 opinions, and its clearest strengths are speed at 19 positive to 7 negative and code quality at 15 to 8. Its weak spots are reliability at 16 positive to 57 negative, usage limits at 18 to 31, and UX at 11 to 29. Antigravity is the better bet for a large evidence base and fast output, while Kiro fits when UX and autonomy matter more and you accept thin data.
Choose Antigravity if
- Want the larger evidence base, 301 opinions from 259 authors
- Care about speed and code quality, which both skew positive
- Already use Gemini CLI and want a Google-backed option
Choose Kiro if
- Value UX, rated 8 positive to 3 negative
- Want autonomy, rated 4 positive to 0 negative
- Accept a small sample of 38 opinions
Where each one wins and loses
PraiseComplaintsA = AntigravityB = Kiro
Reliability
Usage limits
UX
Cost & pricing
Speed
Code quality
Autonomy
Customization